Re: [PATCH v10 00/27] ima: Namespace IMA with audit support in IMA-ns

[Stefan Berger]

On 2/2/22 13:18, Stefan Berger wrote:
> On 2/2/22 11:04, Mimi Zohar wrote:
> > Stefan, we need to differentiate between the different types of audit
> > records being produced by IMA.  Some of these are informational, like
> > the policy rules being loaded or "Time of Measure, Time of Use"
> > (ToMToU) records.  When we discuss IMA-audit we're referring to the
> > file hashes being added in the audit log.  These are the result of the
> > IMA "audit" policy rules.
> >
> > How much of these informational messages should be audited in IMA
> > namespaces still needs to be discussed.  For now, feel free to limit
> > the audit messages to just the file hashes.
> I doubt we should let a user produce informational audit messages or 
> audit messages related to file hashes... it's unfortunate, but it 
> opens a door for abuse.

After some offline discussion with Mimi, the solution may be to gate 
setting IMA audit policy rules with CAP_SYS_ADMIN.

   Stefan